Finding the Fourth Proportional to 2,007.55, 2,770.47 and 1,123.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.55 : 2,770.47 = 1,123.33 : x
2. Step 2: Convert to fraction form
   2,007.55/2,770.47 = 1,123.33/x
3. Step 3: Cross multiply
   2,007.55x = 2,770.47 × 1,123.33
4. Step 4: Simplify right side
   2,007.55x = 3,112,152.07
5. Step 5: Solve for x
   x = 3,112,152.07/2,007.55
6. Step 6: Final answer
   x = 1,550.22